As I saw the headline and began reading the article, I said to myself, "this looks great, but knowing the video industry it'll end up costing like two hundred dollars".
It's actually three hundred dollars.
It looks like a great product, though! :-P
I remember a video series from GameSpot on the game No Man's Sky where they used an effect similar to this, only they also changed the color of the flora (leaves, moss, plants) more flexibly, with one video having it blue, another purple, and another orange.
Here's an example: https://youtu.be/_g15ANx5T7s?t=1m15s
I'm actually not sure whether they just used a chroma key or not (the skin tones look a bit off in GS's videos), but the effect was interesting nonetheless.
That's a common misconception.
Actually, if you break it down, it's pretty obvious that a video recorded with 8 bits of color data per channel can't suddenly generate more color values than it has when it was recorded just because it was downsized. 4:2:0 can become 4:2:2 or 4:4:4 through downscaling, but that's because those are proportions of color detail; they measure detail, not range.
Some have said that downscailing from 4K to HD can produce the equivalent of 10-bit luma (which is not the same thing as a true 10-bit file). I have a hard time figuring out how that could work, though, without having the computer estimate its own brightness values – ones that weren't recorded by the camera – through some sort of effects, edits, or other modifications applied prior to downscaling. Either way, the end result is not the same as actually having 10 bits of data from the beginning.
I was hoping to see that too. . .
So, it's essentially the a7S sensor in the a7 II body and with internal 4K.
That's pretty much what most people were expecting, but I was sort of hoping, especially after seeing the a7R, that they'd go a little bit beyond just the basics.
I like that they added 1080p120, a Gamma Display Assist, adjusted the zebra-striping, and have continued to use a full-pixel readout, though I was expecting other relatively simple upgrades like DCI 4K and maybe an anamorphic mode. Most of all, I was hoping for 10-bit color output via HDMI. Especially for a camera shooting professional log gammas like S-log3, I would think 10-bit would be almost essential to be able to recover proper color and contrast from the resulting images.
While it seemed somewhat unlikely, I was also hoping they would apply the same BSI sensor tech to the a7S and release it with about 16 MP and even better low light, but I can't have everything, I guess :-P – maybe next time.
No word on pricing and availability? That seems to be part of their selling point – that they're assumed to be cheaper than their competition.
Also, a 1.45x factor is pretty interesting. Usually you see either 1.33x or 2x. This sounds like it might work even better with the GH4's 4K photo mode at a 3:2 aspect ratio; there would be even less wasted space that way. (Of course, it's pretty nice to have some real buffer area at the sides of the frame – something most video cameras have lacked.)